Today is the 248th day of 2023 and the 77th day of summer. TODAY’S HISTORY: In 1774, the First Continental Congress convened in Philadelphia. In 1836, Sam Houston was elected the first president of the Republic of Texas. In 1882, the first U.S. Labor Day celebration was held in New York City. In 1975, President Gerald Ford survived an attempt on his life when a Secret Service agent tackled…